Pipe-sealing device



1,627,995 May 1051927' w. J. PENDRY j PIPE SEALING DEVICE Filed Deo. '7, 1925 INVENToR. W/u/AM J. PEA/MY A TTORNEYS:

Patent-ea May '10, 1927.

WILLIAM J. PENDBY, F MARTINZ, CALIFOBIIA.

-rIrE- sEALING nEvIcE.

Application mea December 7,v 1925. serial No.' 73,755.

My invention relates to leak sealing means for pipes-or other liquid conduits, receptacles or the like, and has for itsprimary object the provisionfof means of'this char' acter which will effectively cause aleak to'be properly sealedxwithout requiring that the flow of liquid be checked ,or cut olf during the 'sealing operation.

A further object of' the invention is lo provide means ofl this character -which will be highly effectiy'e and capable' of being quickly associated with a pipe or object so that its use will be vvery desirablein emer-y gency instances. i

A still further object of the'inv'ention. is to provide leak sealing means which will furnish a seal for. a leak and an auxiliary seal atl joints around the leak vso that said means will be very positive of action.

'With the above and other objects in view whichwill appearas the nature of the inven-Y tion is better understood, the same' consists in the improved construction and novel arrangements o'f parts which will hereinafterl be fully described and particularly pointed Out in theclaims. f

In the accompanying drawings has been I- illustrated a single andv preferred` form of the invention, it being, however, understood that no limitations 'are/necessarily made to the precise structural" details therein exhibited but that changes, alterations and modifications within the scope of the claims may be .resorted to when desired.

Figure 1 1s a perspectlve v1ew of a 'Pipe with my device attachedthereto; 'l

`Figure 2 isI a vertical cross-section of the device applied to a pipe;

Figure 3 is a cross-section of "Figure 2 taken on the* line 3 3 thereof;

Figure 4 uis an enlargedicross sectional detail of a lead seal;

Figure is an enlarged plan view of Figure/1; i v

Figure 6 is an enlarged perspective view of the sliding pressure plate.

In carrying the invention. intofpractioe, I can employ any suitable well known means or support which will lcause my improved seal to adapt itself to 'certain conditions and accommodated with respect to'a leak in a pipe to properly'close same. The support shown herein consists of a lclamp 5 having mating sections 6 and 7 bolted or otherwise secured together at v8.-

' operated.

l of the body 'be substituted for one of another size. lother words .the support 5 is made to interchangeably accommodate itself to sealing comodate a' clamp screw 11, the latter bear- `The` section f6 has a -U- sh'aped branch .9 provided, with a threaded opening 10 -to acing against n. sliding pressure plate 12.

This plate slides in the branch 9 as a'guide so that-it does not turn' when the 'screw is The plate 12 has a perforation-13 therein s and `fitting same isy the stem 14 at one side of a 'soft I body 15, preferably lead. -This body is formed .at its opposite side with a conical leak sealing portion 16, and surrounding said portion and formedy as part isy an annular skirt 17 of less depth than the length of the portion 16.

f When using the device, and assuming that the support 5 is applied to the pipe as stated herein, the apex of the cone 16 is cent'ered withrespect to the hole to be sealed ,and the screw 11 controlled to bring pressure to bear against the-entire body 15. This crowds the'cone into the opening frming the leak until the opening is4 effectively sealed. Frogressively with this operation, the skirt portion 17, whose walls are gradagain'st the pipe at points around the openually. reduced toward their free edges, comes ing and the4 walls -arevlinally squashed or somewhat' liattened out to thereby provide an 'auxiliary seal.

'The device'can vbe applied 'quickly .to a pipeand'a leak instant and thoroughly sealed without cutting ofi the liquid pressure withinkthe pipe; 'The soft sealing body 15 maybe of any vsuitable size tomeet given requirements, and one vof a certain size may Inl bodies of different sizes.

claim: Y

1. `As a new article of manufacture, a leak sealer formed of soft metal comprising a .body havingv va centrally disposed conical portion on one side and a skirt thereabout.

2. As a new article of manufacture2 a leak sealer formed of soft metal comprlsing a bodyjhaving 'a centrally disposed conical portion on one side, a skirt thereabout, and a centrally disposed stem on the opposite side of said body.

WILLIAM J. PENDRY. 

